From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 19 Apr 2018 12:40:15 +0800
Subject: drm/amd/pp: Fix NULL point check error in
 smu_set_watermarks_for_clocks_ranges
Git-commit: 6197ae28911841369ff61ebbdf9d732ff6069138
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

It is caused by
'commit d6c9a7dc86cd ("drm/amd/pp: Move common code to smu_helper.c")'

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c
@@ -657,7 +657,7 @@ int smu_set_watermarks_for_clocks_ranges
 	uint32_t i;
 	struct watermarks *table = wt_table;
 
-	if (!table || wm_with_clock_ranges)
+	if (!table || !wm_with_clock_ranges)
 		return -EINVAL;
 
 	if (wm_with_clock_ranges->num_wm_sets_dmif > 4 || wm_with_clock_ranges->num_wm_sets_mcif > 4)